320134332 has 48 divisors (see below), whose sum is σ = 890813952. Its totient is φ = 87489600.

The previous prime is 320134319. The next prime is 320134333. The reversal of 320134332 is 233431023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 320134299 and 320134308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320134333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80919 + ... + 84782.

It is an arithmetic number, because the mean of its divisors is an integer number (18558624).

Almost surely, 2^320134332 is an apocalyptic number.

It is an amenable number.

320134332 is an abundant number, since it is smaller than the sum of its proper divisors (570679620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320134332 is a wasteful number, since it uses less digits than its factorization.

320134332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165738 (or 165736 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 320134332 is about 17892.2981195821. The cubic root of 320134332 is about 684.0860754848.

Adding to 320134332 its reverse (233431023), we get a palindrome (553565355).

The spelling of 320134332 in words is "three hundred twenty million, one hundred thirty-four thousand, three hundred thirty-two".